7972642 has 8 divisors (see below), whose sum is σ = 12344832. Its totient is φ = 3857700.

The previous prime is 7972633. The next prime is 7972663. The reversal of 7972642 is 2462797.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64234 + ... + 64357.

It is an arithmetic number, because the mean of its divisors is an integer number (1543104).

Almost surely, 2^7972642 is an apocalyptic number.

7972642 is a deficient number, since it is larger than the sum of its proper divisors (4372190).

7972642 is a wasteful number, since it uses less digits than its factorization.

7972642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128624.

The product of its digits is 42336, while the sum is 37.

The square root of 7972642 is about 2823.5867261340. The cubic root of 7972642 is about 199.7717562898.

The spelling of 7972642 in words is "seven million, nine hundred seventy-two thousand, six hundred forty-two".